ELECTRICALLY ENHANCED RETRIEVAL OF MATERIAL FROM VESSEL LUMENS

    公开(公告)号:US20210177446A1

    公开(公告)日:2021-06-17

    申请号:US17249135

    申请日:2021-02-22

    Applicant: Covidien LP

    Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.

    VASCULAR REMODELING DEVICE
    4.
    发明申请
    VASCULAR REMODELING DEVICE 审中-公开
    血管再造装置

    公开(公告)号:US20160113786A1

    公开(公告)日:2016-04-28

    申请号:US14932330

    申请日:2015-11-04

    Applicant: COVIDIEN LP

    Abstract: A generally spherical vascular remodeling device is permanently positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device at the junction to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and mechanical or electrolytic release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a first end, a second end substantially opposite to the first end, and a plurality of filaments extending between and coupled at the first end and the second end. Such devices may be football shaped, pumpkin shaped, or twisted. The device may include a plurality of loops forming a generally spherical shape.

    Abstract translation: 通常为球形的血管重建装置可永久定位在具有动脉瘤的分叉的传入和传出血管的交界处。 在将装置定位在接合处以将装置基本上符合接合部的形状之后,该装置用作支架以抑制物体从动脉瘤中的突出,并且该装置允许灌注到传出血管。 定位装置可以包括从导管部署和机械或电解释放。 栓塞材料可以在设备定位之前或之后插入动脉瘤中。 该装置可以具有第一端,与第一端基本相对的第二端,以及在第一端和第二端处延伸并在其之间耦合的多根细丝。 这种装置可以是足球形,南瓜形或扭曲的。 该装置可以包括形成大致球形的多个环。

    DELIVERY OF MEDICAL DEVICES
    8.
    发明申请
    DELIVERY OF MEDICAL DEVICES 审中-公开
    医疗器械的交付

    公开(公告)号:US20150066131A1

    公开(公告)日:2015-03-05

    申请号:US14040516

    申请日:2013-09-27

    Applicant: Covidien LP

    Abstract: A stent delivery system can include a core member, a stent, and a stent engagement member. The engagement member can be positioned along a distal segment of the core member and be coupled to the core member. The engagement member can have an outer surface. The stent can extending along the core member distal segment such that the outer surface of the engagement member engages an inner surface of the stent along at least a portion of only a distal half of the stent for transmitting an axial force from the core member to only the stent distal half of the stent.

    Abstract translation: 支架输送系统可以包括芯构件,支架和支架接合构件。 接合构件可以沿着芯构件的远侧段定位并且联接到芯构件。 接合构件可以具有外表面。 支架可以沿着芯构件远侧段延伸,使得接合构件的外表面沿支架的内表面沿支架的远端的至少一部分接合,用于将轴向力从芯构件传递到仅 支架远端支架的一半。

    Methods and apparatus for luminal stenting
    9.
    发明授权
    Methods and apparatus for luminal stenting 有权
    腔内支架术的方法和装置

    公开(公告)号:US08591566B2

    公开(公告)日:2013-11-26

    申请号:US13692021

    申请日:2012-12-03

    Applicant: Covidien LP

    Abstract: A stent delivery system, a core assembly, and methods of operating the same are provided. The delivery system can comprise a catheter and the core assembly. The core assembly can comprise a constraining member, protruding member, a core member, and a stent extending along the core member. The tubular constraining member can be spaced apart from the core member and define a capture area. The protruding member can be disposed along the core member at least partially distal of the capture area. The stent can have a first portion disposed within the capture area and a second portion, distal to the first portion, extending across or over an outer surface of the protruding member so that the protruding member and the constraining member cooperate to inhibit expansion of the first portion of the stent.

    Abstract translation: 提供支架输送系统,芯组件及其操作方法。 输送系统可以包括导管和芯组件。 芯组件可以包括约束构件,突出构件,芯构件和沿着芯构件延伸的支架。 管状约束构件可以与芯构件间隔开并限定捕获区域。 突出构件可以沿着芯构件至少部分地远离捕获区域设置。 支架可以具有设置在捕获区域内的第一部分和远离第一部分的第二部分,其延伸穿过或突出部件的外表面,使得突出部件和约束部件协作以抑制第一部分 部分支架。

    LUMINAL STENTING
    10.
    发明申请

    公开(公告)号:US20220142800A1

    公开(公告)日:2022-05-12

    申请号:US17648506

    申请日:2022-01-20

    Applicant: Covidien LP

    Abstract: A stent delivery system can include a core member, first and second restraints, and a stent engagement component. The core member can have a distal segment. The first and second restraints can be coupled to the core member distal segment and axially spaced apart from each other to provide an axial gap. The first and second restraints can each have an outer profile that tapers radially inwardly in directions away from the gap. The stent engagement component can be at least partially disposed in the axial gap between the first and second restraints such that the component is slidably and rotatably coupled to the core member distal segment.

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